She moved to Chelsea in the WSL and became the most recognizable name in women's club soccer globally, a player whose arrival changed what a club's ambitions were allowed to look like. As captain of the Australian Matildas she carried a national team into the 2023 Women's World Cup on home soil and produced one of the tournament's defining individual performances, scoring a hat-trick against England in the semifinal before Australia fell in extra time. That tournament changed the scale of women's soccer in Australia in ways that will take years to fully measure, and Kerr was at the center of it, as she has been at the center of almost everything significant the Matildas have done across a decade of international competition.

She is known for celebrating goals with a backflip, a signature she has performed at every level of the game from the W-League to the World Cup stage, and which has become one of the most recognized celebration sequences in women's soccer globally. She is in a relationship with U.S. women's national team player Kristie Mewis, which she has spoken about publicly. The backflip and the partnership are both expressions of the same quality: someone who has never seen a reason to do things quietly when doing them openly is an option.